<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- {{ scope.row }} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="创建时间" prop="create_time">
          <template slot-scope="scope">
            {{ scope.row.create_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>

      <!-- 添加用户的对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <!-- 内容主体区域 -->
        <el-form
          ref="addFormRef"
          :model="addForm"
          :rules="addFormRules"
          label-width="70px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <el-form
          ref="editFormRef"
          :model="editForm"
          :rules="editFormRules"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>

        <span slot="footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClosed"
      >
        <div>
          <p>当前用户：{{ userInfo.username }}</p>
          <p>当前角色：{{ userInfo.role_name }}</p>
          <p>
            分配新角色：
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in roleList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    // 验证邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9])+@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        return callback();
      }
      callback(new Error("请输入正确的邮箱"));
    };
    // 验证手机规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1([38]\d|5[0-35-9]|7[3678])\d{8}$/;
      if (regMobile.test(value)) {
        return callback();
      }
      callback(new Error("请输入正确的手机号码"));
    };
    return {
      //获取用户列表参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      // 添加表单的验证规则
      addFormRules: {
        username: [
          {
            required: true,
            message: "请输入用户名",
            trigger: "blur"
          },
          {
            min: 3,
            max: 15,
            message: "长度在 3 到 15 个字符",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur"
          }
        ],
        email: [
          {
            required: true,
            message: "请输入邮箱",
            trigger: "blur"
          },
          {
            validator: checkEmail,
            trigger: "blur"
          }
        ],
        mobile: [
          {
            required: true,
            message: "请输入手机号码",
            trigger: "blur"
          },
          {
            validator: checkMobile,
            trigger: "blur"
          }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          {
            required: true,
            message: "请输入邮箱",
            trigger: "blur"
          },
          {
            validator: checkEmail,
            trigger: "blur"
          }
        ],
        mobile: [
          {
            required: true,
            message: "请输入手机号码",
            trigger: "blur"
          },
          {
            validator: checkMobile,
            trigger: "blur"
          }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 已选择的角色
      selectedRoleId: ""
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) {
        return this.$message.error("用户列表获取失败!");
      }
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    //监听pagesize 的改变
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听当前页数
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关的变化
    async userStateChange(userInfo) {
      console.log(userInfo);
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("用户状态更新失败！");
      }
      this.$message.success("用户状态更新成功！");
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    //添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return;
        }
        //可以发起真正的用户添加请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          return this.$message.error("用户添加失败！");
        }
        this.$message.success("用户添加成功！");
        // 隐藏用户添加对话框
        this.addDialogVisible = false;
        // 重新获取用户列表数据
        this.getUserList();
      });
    },
    // 展示用户修改对话框
    async showEditDialog(id) {
      // console.log(id);
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户信息失败！");
      }
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户之前进行验证
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        // 发起修改用户信息请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败！");
        }

        //关闭对话框
        this.editDialogVisible = false;
        // 刷新用户列表数据
        this.getUserList();
        // 提示修改成功
        this.$message.success("用户信息修改成功！");
      });
    },
    //根据id删除用户信息
    async removeUserById(id) {
      //弹框提示是否删除该用户
      const confirmText = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      //确定为：confirm；取消为：cancel
      if (confirmText !== "confirm") {
        return this.$message.info("已取消删除！");
      }

      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("用户删除失败！");
      }

      this.$message.success("用户删除成功！");
      //重新获取用户数据列表
      this.getUserList();
    },
    // 展示分配角色对话框
    async setRole(user) {
      this.userInfo = user;

      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败！");
      }
      this.roleList = res.data;
      // console.log(this.roleList);

      this.setRoleDialogVisible = true;
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message("请选择要分配的角色！");
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      );

      if (res.meta.status !== 200) {
        return this.$message.error("分配角色失败！");
      }
      this.$message.success("分配角色成功！");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    // 监听分配角色的对话框的关闭
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userInfo = {};
    }
  }
};
</script>
<style lang="less" scoped></style>
